NL257190A - - Google Patents

Info

Publication number
NL257190A
NL257190A NL257190DA NL257190A NL 257190 A NL257190 A NL 257190A NL 257190D A NL257190D A NL 257190DA NL 257190 A NL257190 A NL 257190A
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL257190A publication Critical patent/NL257190A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
NL257190D 1959-11-26 NL257190A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959S0065988 DE1240987B (de) 1959-11-26 1959-11-26 Sprunghaft betaetigter Lastumschalter fuer Stufentransformatoren

Publications (1)

Publication Number Publication Date
NL257190A true NL257190A (xx)

Family

ID=7498459

Family Applications (1)

Application Number Title Priority Date Filing Date
NL257190D NL257190A (xx) 1959-11-26

Country Status (3)

Country Link
CH (1) CH387784A (xx)
DE (1) DE1240987B (xx)
NL (1) NL257190A (xx)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219773A (de) * 1940-04-20 1942-02-28 Licentia Gmbh Verfahren und Einrichtung zum Umschalten von Transformatoranzapfungen unter Last.
NL119863B (xx) * 1943-02-21
DE892177C (de) * 1943-02-21 1953-10-05 Siemens Ag Lastschalter fuer Stufenregeleinrichtungen von Transformatoren, Drosselspulen od. dgl.
DE824517C (de) * 1950-05-27 1951-12-13 Accumulatoren Fabrik Ag Unterbrechungslose Umschaltvorrichtung fuer Schaltzellen von Akkumulatorenbatterien

Also Published As

Publication number Publication date
CH387784A (de) 1965-02-15
DE1240987B (de) 1967-05-24

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